Adrian Flux get most recommendations - one or two negative comments but no reasons given? It sounds like they are easy to deal with.
they are useless!! i got a quote from them years ago for a mkII escort, when i told them it had a cage in the quote DOUBLED!!
tried them for quote about ten years ago on an imported soarer, never took the policy out and about a week or two later i started to get threatening letters from them saying i owed them money for the policy i never took out.
have spoken to dozens of people over the years who've had a nightmare when they have had to claim on one of their policys.
if they are still taking on new business you want to get cover with AON. premium is based on the value you give them, the cover is fantastic, tools in the car, parts in a secure garage and i know of people who've been paid out from them wthin about ten days.
and the best bit, when you stick a k series head on a mini block your premium doesn't go up as they don't class it as an engine swap!!